表结构: t_order 表 t_member 表 t_setmeal 表 需求描述: 根据 t_order 表的 id 查询对应的信息 select m.name AS member, s.name AS setmeal, o.orderDate AS orderDate, o.orderType AS orderType from t_order o, t_member m, t_setmeal s where o.member_id=m.id and o.setmeal_id=s.id and o.id= 5 运行结果: